text: // Copyright 2020 Google LLC
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //    https://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  'use strict'
  
  const helptext = () => {
    console.log('eneyj v0.1.0 command line tool')
    console.log('Available parameters: noeval, novalidation, nolin, typedlin, ' +
                'log, debug, lang, labellang, parselang, outputlang, ' +
                'labelize, jsondir, nocolor')
    console.log('Example call: eneyj --lang:en \'negate(false)\'')
    console.log('Documentation in README. See wikilambda.org')
    process.exit()
  }
  
  exports.helptext = helptext
  